Nicely put, MM.

Okay so you wouldn't bring out the cruder pieces at the WI meeting, but they have had their place in our history. This has all been gone over before. The bawdy repertoire and the out and out filth have played a part in our past and are for some of us at least a part of our folk heritage. Many of these are parodies.

Funnily enough it's often the flimsier pieces that survive. We sophisticated people unfortunately cannot predict what the folk will take on board and perpetuate.